Airflow\nFaulty Product Returns Process\nOne of the reasons we have been selling Airflow\nproducts for so many years is that we have very few returns and of those probably\n90% of the items returned are not faulty \u2013 they were just installed incorrectly.\nShould you be having any issues with the\ninstallation of your Airflow product please call customer services on 01494\n525252.\nAny product considered to be faulty must be\nregistered with Airflow first, who will go through a basic fault finding\nprocess to determine if the item needs further investigation and issue a PID\nnumber.\nOnly faulty products with a PID number can be\nreturned to MailHeat; this does not guarantee a credit or replacement \u2013 this\nwill be decided by Airflow after testing said item. If returned without a PID\nnumber repatriation postage would be at a cost to the sender.\nWhat is most likely to invalidate my 3 year\nwarranty:-\nAny modification immediately invalidates\nwarranty\nRemoval of the Airflow .